Subaru IMPREZA GD 2007 Series Manual page 3970

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6. CHECK FUEL LEVEL SENSOR
Step
1 CHECK FUEL LEVEL SENSOR.
1) Remove the fuel level sensor. <Ref. to
FU(H4SO)-53, REMOVAL, Fuel Level Sensor.>
or <Ref. to FU(H4DOTC)-65, REMOVAL, Fuel
Level Sensor.> or refer to "FU(STI) Section".
2) Measure the resistance between fuel level
sensor terminals when the float is in FULL or
EMPTY position.
Terminals
No. 2 — No. 3:
2 CHECK FUEL SUB LEVEL SENSOR.
1) Remove the fuel sub level sensor. <Ref. to
FU(H4SO)-54, REMOVAL, Fuel Sub Level Sen-
sor.> or <Ref. to FU(H4DOTC)-66, REMOVAL,
Fuel Sub Level Sensor.> or refer to "FU(STI)
Section".
2) Measure the resistance between fuel sub
level sensor terminals when the float is in FULL
or EMPTY position.
Terminals
No. 1 — No. 2:
3 CHECK HARNESS BETWEEN FUEL SUB
LEVEL SENSOR AND COMBINATION
METER.
1) Disconnect the connector from the combi-
nation meter.
2) Measure the resistance between the fuel
sub level sensor harness connector terminal
and combination meter harness connector ter-
minal.
Connector & terminal
Except for STI model
(R59) No. 1 — (i12) No. 2:
STI model
(R59) No. 1 — (i12) No. 3:
4 CHECK HARNESS BETWEEN FUEL LEVEL
SENSOR AND FUEL SUB LEVEL SENSOR.
Measure the resistance between fuel level sen-
sor harness connector terminal and fuel sub
level sensor harness connector terminal.
Connector & terminal
(R58) No. 3 — (R59) No. 2:
5 CHECK FUEL LEVEL SENSOR GROUND
CIRCUIT.
Measure the resistance between fuel level sen-
sor harness connector terminal and chassis
ground.
Connector & terminal
(R58) No. 2 — Chassis ground:
Combination Meter System
Check
Is the resistance 0.5 — 2.5 Ω
(FULL) and 50 — 52 Ω
(EMPTY)?
Is the resistance 0.5 — 2.5 Ω
(FULL) and 42 — 44 Ω
(EMPTY)?
Is the resistance less than 10 Ω? Go to step 4.
Is the resistance less than 10 Ω? Go to step 5.
Is the resistance less than 10 Ω? Except for STI
IDI-7
INSTRUMENTATION/DRIVER INFO
Yes No
Go to step 2. Replace the fuel
level sensor.
Go to step 3. Replace the fuel
sub level sensor.
Repair the wiring
harness.
Repair the wiring
harness.
Repair the wiring
model: Check the harness.
fuel gauge. <Ref.
to IDI-17,
REMOVAL, Fuel
Gauge.> STI
model: Replace
the meter main
assembly.